1. Introduzione
The ETON MA 4 is a high-performance 4-channel Class D compact amplifier designed for automotive and recreational vehicle audio systems. This amplifier combines advanced technology with a compact design, offering premium sound quality and high output performance. It is engineered for optimal compatibility and flexible installation in various vehicle types.
2. Funzioni chjave
- Advanced Class D Technology: Utilizes high-quality electronic components and multi-layer boards for high efficiency and superior sound reproduction with minimal distortion.
- Compact Aluminum Housing: Features a one-piece die-cast aluminum housing with a matte anodized finish, ensuring durability and efficient heat dissipation.
- Flexible Top Plate: The ETON logo top plate is removable and can be rotated 180° for flexible mounting options and optimal aesthetic integration.
- Comprehensive Adjustment Options: Hidden beneath the top plate are controls for 12 dB/octave high-pass and low-pass filters, high-level input voltage control, high-level input resistance (input load), and gain settings.
- Integrated Adjustment Tool: A specialized tool is integrated into the heatsink for convenient adjustment of filter functions and gain.
- Barra di statutu LED: An indirect LED light bar assists in setting controls accurately.
- Removable Connectors: Features detachable connectors for power and audio signals, simplifying installation and maintenance.
- Variable Mounting Feet: Adjustable mounting feet allow for versatile installation, including hidden setups.
- Disegnu impilabile: serie MA amplifiers are stackable, enabling compact, multi-ampinstallazioni di lifier.
- Ingegneria tedesca: Designed in Germany, ensuring high standards of quality and performance.
3. Setup è Installazione
Una stallazione curretta hè cruciale per una prestazione è una sicurezza ottimali. Hè cunsigliatu chì a stallazione sia effettuata da un prufessiunale qualificatu.
3.1 Unpacking è Inspection
Elimina cù cura u amplifier from its packaging. Inspect for any signs of damage during transit. Ensure all components listed in the package contents are present.
- ETON MA 4 Amppiù vivu
- 1 Plug di putenza
- 3 Connettori di parlante
- 3 High-Level Cables
- Cuntrollu Remotu di Livellu
- 4 Piedi di Muntamentu
- Viti di montaggio
3.2 Muntà u Amppiù vivu
The MA 4's compact size and variable mounting feet allow for flexible installation. Consider a location that provides adequate ventilation and is protected from moisture and excessive heat.

Figure 3.2.1: ETON MA 4 Amplifier, showing its compact design and connection ports.

Figura 3.2.2: Exploded view illustrating the stackable design and mounting points for multiple MA series amplifiers.

Figure 3.2.3: Detail of the variable mounting feet, allowing for flexible installation options.
- Sceglite un locu di muntazione adattatu.
- Use the provided mounting feet and screws to secure the amppiù vivu.
- For stacked installations, utilize the additional mounting points and blind holes.
3.3 Connessioni Wiring
Assicuratevi chì a batteria di u veiculu sia scollegata prima di fà qualsiasi cunnessione elettrica.

Figure 3.3.1: Rear panel showing power, speaker, and RCA input/output connections.
- Cunnessione di putenza: Connect the power plug to the amplifier. Ensure proper polarity (+12V, GND, Remote). Use appropriate gauge wiring for power and ground.
- Cunnessioni di parlante: Use the provided speaker connectors to connect your speakers to the amplifier's output terminals (CH1-CH4). Observe correct polarity.
- Input audio:
- Input di altu livellu: If your head unit does not have RCA outputs, use the high-level input cables provided. Connect them to the speaker outputs of your head unit.
- Low-Level (RCA) Input: Connect RCA cables from your head unit's pre-out to the amplifier's RCA input jacks (CH1/2, CH3/4).
- Control remoto: Connect the level remote control if desired for convenient volume adjustment.
4. Funziunamentu è aghjustamenti
The ETON MA 4 offers various controls to fine-tune your audio system. These controls are located under the removable top plate.

Figura 4.1.1: Amplifier with top cover removed, revealing the adjustment controls for filters, gain, and input settings.

Figure 4.1.2: Detail of the orange adjustment tool integrated into the heatsink for precise control adjustments.
4.1 Power-Up iniziale
- Dopu chì tutte e cunnessione sò state fatte, ricunnette a batteria di u veiculu.
- Accendete a vostra unità principale. U amplifier should power on, indicated by the LED status bar.
4.2 Ajustà i cuntrolli
Use the integrated adjustment tool to set the following parameters:
- Controlle di Guadagnu: Adjust the gain for each channel (CH1/2, CH3/4) to match the output level of your head unit. Start with the gain at minimum and slowly increase until desired volume is achieved without distortion. The LED status bar can assist in this process.
- Filter Settings (HPF/LPF):
- HPF (filtru passa-altu): Allows frequencies above the set point to pass. Useful for protecting smaller speakers from low bass frequencies.
- LPF (Filtru Passa-Bassu): Allows frequencies below the set point to pass. Typically used for subwoofers.
- Input Voltage cuntrollu: Adjust this setting based on whether you are using high-level or low-level inputs to ensure proper signal matching.
- Input Resistance (Input Load): For high-level inputs, adjust the input resistance to optimize signal transfer from the head unit.
5. Mantenimentu
The ETON MA 4 amplifier is designed for durability and requires minimal maintenance.
- Pulizia: Aduprate un pannu morbidu è seccu per pulizziari ampl'esternu di u lifizer. Evitate detergenti o solventi abrasivi.
- Ventilazione: Assicuratevi chì u amplifier's heatsink fins are free from dust and debris to maintain proper cooling. Do not obstruct airflow around the amppiù vivu.
- Cunnessioni: Verificate periodicamente tutti i cunnessione di i fili per assicurassi ch'elli sianu sicuri è senza corrosione.
6. Risoluzione di prublemi
If you experience issues with your ETON MA 4 amplifier, riferitevi à i seguenti prublemi è suluzioni cumuni:
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| Nisuna putenza / Amplifier ùn si accende |
|
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| Nisuna Output Sound |
|
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| Sonu distortu |
|
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| Ampsurriscaldamentu di l'alimentatore |
|
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7. Specifiche tecniche
| Feature | Specificazione |
|---|---|
| Numero di mudellu | MA 4 |
| Potenza di output (RMS) |
|
| Rapportu Signal-to-Noise | 83 dB |
| Damping Factor @ 4 ohms | > 165 |
| Dimensioni (L x W x H) | 184 x 160 x 51 mm |
| Numero di canali | 4 |
| Materiale | Aluminium pressa |
| Tipu di muntatura | Through-hole mounting |
| Cunfurmità | TÜV |
8. Garanzia infurmazione
I dettagli specifichi di a garanzia sò generalmente furniti cù l'imballu di u pruduttu o dispunibili nantu à u situ ufficiale di u fabricatore. website. Please refer to the documentation included with your purchase or visit the ETON websitu per i termini è e cundizioni di garanzia più attuali.
9. Assistenza Clienti
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact ETON customer support. Contact information can usually be found on the manufacturer's websitu o in a documentazione di u produttu.
Manufacturer: ETON
For more information, you may visit the official ETON websitu: www.eton-gmbh.com





